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Morsø 6143 Review (UK 2026)

£2,100 RRP / £1,785 street, 5kW DEFRA wood-only. Tall contemporary slimline Danish cast iron — 1,130mm tall, 440mm wide, designed for modern UK interiors with limited footprint.

Headline specs

  • Heat output: 5.0kW nominal
  • Certification: DEFRA-approved
  • Fuel: Wood only (no riddling grate)
  • Dimensions: ~440×1,130×400mm — tall slimline proportions
  • Weight: ~125kg
  • Flue: 5" (125mm) — straightforward UK chimney retrofit
  • Air control: Single
  • Warranty: 10-year on main exterior body parts (authorised dealer registration)
  • Manufacture: Denmark
  • RRP: £2,100 / Street ~£1,785

Why the tall slimline design matters

The 6143's tall, narrow form factor (1,130mm × 440mm) is its defining feature. It suits modern UK interiors where wide traditional stoves like a Stovax Stockton 5 Wide (603mm wide) would dominate the room visually. The slim footprint also fits chimney-breast recesses that won't accept wider models.

Long flame view is the design payoff: the tall firebox shows the fire vertically, which Morsø's designers describe as architectural rather than purely decorative. The flat firebox base (no riddling grate) optimises secondary burn — which is why the 6143 is wood-only.

Calculate your Morsø 6143 install cost

The 6143 sits in the mid-tier in the calculator. Total installed cost typically £3,200-£4,200 with an existing UK 5" chimney liner.

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6143 vs 6148 — same model, taller variant

Morsø sells two heights in the same body width and depth:

  • 6143 at ~1,130mm tall (£2,100 RRP). Suits typical UK ceiling heights and most fireplace recesses.
  • 6148 at ~1,390mm tall (£2,400 RRP). For higher ceilings or when additional visual presence is wanted.

Same 5kW output, same 5" flue, same Danish cast-iron construction. Choose 6143 unless your room specifically calls for the additional 260mm of height.

Why owners love it

  • Slimline footprint: 440mm wide fits where wider 5kW stoves can't
  • Architectural form: tall vertical proportions that work in contemporary UK interiors
  • Danish cast iron heritage: 125kg of cast iron designed for lifetime use, in continuous production since 1853
  • Long flame view: tall firebox shows the fire vertically
  • 5" flue retrofit-friendly: unlike the Charnwood Aire 5 (which uses an unusual 6" flue at 5kW), the 6143 fits a standard UK 5" chimney lining

Known quirks

  • Wood-only: no riddling grate, no smokeless fuel capability. For multifuel at this price look at the Morsø Badger 3142 (£1,700) or step outside the brand
  • Airwash on smaller Morsø modelsis described as "primitive" on UK forums — relies on properly seasoned hardwood for clear glass. Pair with a moisture meter
  • Warranty claim friction: some UK customers have reported difficulty honouring the 10-year body warranty. Keep dealer purchase receipt and registration confirmation safe

Pricing vs UK alternatives

  • 6143 £2,100 RRP vs Charnwood Aire 5 store stand £1,695 — Charnwood is £405 cheaper, UK-made, clearSkies Level 5, with the 10-year body + 3-year consumables warranty. Aire 5 review →
  • 6143£2,100 vs Aarrow Hoxton 7 Log Store Low Eco £2,928 — Aarrow is £828 more but adds an integrated log store and delivers 7kW vs the 6143's 5kW.
  • 6143 £2,100 vs Morsø S10 £2,500 — the S10 is the next Morsø slimline step up. Same 5kW output but different proportions.

Where to buy in the UK

Authorised UK dealers only:

  • Stovesonline (Devon, major Morsø UK dealer)
  • Bonfire (broad stockist, Reading)
  • Rangemoors (Devon, full Morsø range, transparent pricing)
  • Hot Box Stoves, Arcade Wales, My Lovely Stove (NI/Ireland)
  • Woodburner Warehouse

Expect ~£1,785 street vs £2,100 RRP — 15% typical UK discount.

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Frequently asked questions

Is the Morsø 6143 worth £2,100?

For owners who want a tall contemporary slimline Scandinavian cast-iron design, yes. The 6143 is one of Morsø's most distinctive contemporary models — 1,130mm tall, ~440mm wide — visually slim and architectural. 5kW DEFRA-approved wood-only at 125kg. At £2,100 RRP (~£1,785 street) it sits in the premium-contemporary tier alongside Contura 510 Style and Charnwood Aire 5 store stand.

What's the difference between the 6143 and the 6148?

Same body width and depth, different height. The 6143 (~1,130mm tall, £2,100) is the standard. The 6148 (~1,390mm tall, £2,400) is the extra-tall variant. Same 5kW output, same 5" flue, same Danish cast-iron construction. Choose 6143 for typical UK ceiling heights, 6148 for higher ceilings or where you want the additional visual presence.

Why is the 6143 wood-only, not multifuel?

Morsø's contemporary tall slimline models are designed for clean wood combustion with a flat firebox base (no grate). This optimises secondary burn and gives the long flame view the design is built for. For multifuel capability at this price, look at the Morsø Badger 3142 (£1,700) or step outside the brand to the Stovax Sheraton 5 (£1,721).

Will the 6143 work with an existing 5" chimney liner?

Yes — 5" (125mm) flue collar, single air control, designed for an existing UK chimney install. Unlike the Charnwood Aire 5 (which uses an unusual 6" flue at 5kW), the 6143 is straightforward to retrofit into a typical UK 5" chimney lining.

What's the warranty on a Morsø 6143?

10-year manufacturer's guarantee against manufacturing defects on main exterior body parts when supplied by an authorised UK dealer. Note: some UK customers have reported friction in honouring the 10-year claim — keep your dealer purchase receipt and registration confirmation safe. Consumables (glass, firebricks, rope seals) are typically year 1 only.

6143 vs Charnwood Aire 5 store stand?

Both contemporary tall designs at 5kW around the £1,600–£2,100 mark. Aire 5 store stand (£1,695) is UK-made (Isle of Wight) with the 10-year body + 3-year consumables warranty and clearSkies Level 5. Morsø 6143 (£2,100 RRP) is Danish cast iron with the heritage premium and distinctive slimline aesthetic. Charnwood is the warranty pick; Morsø is the design pick.

Where to buy a Morsø 6143 in the UK?

UK authorised dealers only. Major retailers: Stovesonline (Devon, major Morsø UK dealer), Bonfire (broad stockist, Reading), Rangemoors (Devon — full Morsø range with transparent pricing). Also Hot Box Stoves, Arcade Wales, My Lovely Stove (NI/Ireland), Woodburner Warehouse. Expect ~£1,785 street vs £2,100 RRP.